Yarn control device



June 17, 1-958 J. GIFT 2,838,922

mm CONTROL DEVICE Filed Sept. 7, 1955 2 Sheets-Sheet 1 H6Z H6'- Q Y Y H 1 L5 20 2011 w' I 2 A f g g P 12 H 2 ""1 ,ii' I 12 l g i H r 2 v 1 PT I 11 .11 1 y 2 y i I Pr] 2: i ;f

i 10 M; l l i INVENTOR. John 6 1' 1,

BY WA A TTORNEYS.

June 1 7, 1958 J, 1 1- 2,838,922

YARN CONTROL DEVICE Filed Sept. '7, 1955 2 Sheets-Sheet 2 IN V EN TORI ATTORNEYS.

9 States Patent YARN CONTROL DEVICE John Gift, Greensboro, N. C., assignor to Rosedale Knittmg Company, Reading, Pa., a corporation of Pennsylvania Application September 7, 1955, Serial No. 532,923

9' Claims. (Cl. 66-125) I This invention relatesto yarn control devices, that is tosay, to devices for preventing snarling of yarns, particularly hard twisted yarns of nylon or the like commonly referred to as stretch" yarns and covered core yarns as they are drawn endwise from spirally wound supply packages by the fabric producing instrumentalities of knitting or other textile machines.

' The chief aim of my invention is to providea device for the above purpose which is of simple and inexpensive construction; which is easily and quickly applied to the yarn package; which can be relied upon to positively control the yarn against snagging and over-feeding until the package iscompletely exhausted; and which is adaptable for use with packages of different sizes and shapes.

Other objects and attendant advantages will appear from the following detailed description of the attached drawings, wherein:

Fig. 1 is a view, partly in elevation and partly in axial section, of a device conveniently embodying my inven-.

tion, for controlling hard twisted yarn to prevent snagging thereof incident to withdrawal from a supply package of relatively small diameter and conical in form.

Fig. 2 is a fragmentary perspective view showing the device preparatory to its application to the yarn supply package in Fig. 1.

Fig. 3 is a view showing in plan, one of the component parts of the device.

Fig. 4 is a view similar to Fig. 1 showing the device arranged to control yarn incident to withdrawal from a package of larger diameter and cylindrical in form.

Fig. 5 is a perspective view of the device arranged as in Fig. 4 preparatory to its application to the larger yarn supply package; and

Fig. 6 is a fragmentary skeletonized view, in transverse section, of a full fashioned stocking knitting machine exemplifying one of the uses of the device.

With more specific reference first to Fig. 1 of these illustrations, it will be noted that the yarn control device of my invention, in the form there shown, comprises a shallow cup-like base socket 10 into which a yarn supply package P, in this instance one of relatively small diameter and conical inconfiguration, is inserted for stable support in upright position. Engageable over the base member 10 to surround the package P is a cylinder 11, which, in practice, is fashioned from suitably stilf sheet material, preferably of transparent plastic to a height somewhat less than that of the package. integrally formed with or fixedly secured to the cylinder 11, at the top, is an outwardly-projecting circumferential flange 12. Overlaid upon the flange 12 is a circular disk 15 which is separately shown in Fig. 3, said disk being struck in practice, from relatively thin flexible resilient sheet material, preferably of soft rubber, to a diameter corresponding to the overall diameter of said flange. As shown, the disk 15 has a small central aperture 16, annularly-spaced slits 17 tangential to said aperture which terminate at the inner limit circle C of a blank peripheral marginal area M, and shorter tangential slits 18 which terminate in a smaller concentric circle C. As a consequence of this construction the disk 15 is provided with a plurality of inwardly extending point-ended tapering tongues 19. As further shown in Fig. 1, the disk 15 is retained-in "position by a hold-down cap 20 which engages witha -tight force fit over the edge of the flange 12 of the cylinder 11, and which has an axial opening 21 of a diameter corresponding to that of the circle C in Fig. 3. Normally, due to the resiliency of the rubber, the tongues 19 will lie flat in the plane of the disk 15 as shown in Fig. 2.

In applying the device, it is impaled downwardly over the'previously placed yarn package P, and the bottom of the cylinder 11 engaged about the cup member 10 .as in Fig. 1. As this is done, the tongues 19 of the disk 15 are flexed upwardly into frictional engagement with the surface of the yarn winding at the upper protruding end portion of the package P. Due to slitting of the disk 15 along tangential lines as above explained, the tongues 19 take positions inclined in .the direction of gyration of the yarnY as, the latter is withdrawn upwardly endwise from the package P as indicated by the arrow head in Fig. 1. As a consequence, the yarn is positively controlled against snarling by the lengthwise progressive wiping action of the tongues 19 of the disk 15 as it is withdrawn from the package.

In order to enable adaptation of the device to yarn supply packages of larger diameter such as the one illustrated at P in Fig. 4, I have provided a substitutable cap member 20a which is identical with cap member 20 of Fig. 1 except that the opening 21a therein is of a larger diameter, i. e., equal in size to circle C referred to in connection to the disk 15 in Fig. 3. device, arranged as in Fig. 5, is applied over the yarn package P, the full lengths and areas of the tongues 19 are made available for wiping the yarn winding at the upper protruding end portion of the package.

The device of my invention is advantageous for example in connection with knitting machines, such as the one illustrated partly in Fig. 6, in the production of so called stretch stockings from highly twisted yarns of nylon, Orion or the like. In such use of the device, the socket base 10 is secured, by means of a screw bolt 22 (also shown in Figs. 1 and 4), within the bottom of the usual humidifying box 25 for reception of the yarn package P and engagement by the cylinder 11 with the tongued disk 15 attached. As illustrated, the yarn Y is lead upward from the package through an eye 26 in the top of the box 25, coaxial with the package P, en route to a moisting trough 27 and then directed over a rod 23 and through an eye 29 in the usual drip-catch pan 30 to the traversing feed finger 31 of the knitting machine, for incorporation into fabric by the needles 32. Before traversing the moisting wick 33 in the trough 27, the yarn Y is passed between a pair of tensioned disks 35, and in the interval between said trough and the rod 28, it is run through a slack take-up ring 36. In this way the yarn is tensioned to a very light degree, i. e., just sufficient to maintain it taut in its travel from the supply package P to the needles 52 of the knitting machine.

It is to be understood that the control device of my invention is not limited in use to flat or straight knitting machines such as the one herein exemplified, since it is equally applicable to circular or other types of knitting machines as will be readily understood by those skilled in the textile arts.

While the preferred embodiment of this invention has been described in some detail, it will be obvious to one skilled in the art that various modifications may be made without departing from the invention as hereinafter claimed.

Thus when the i Having thus described my invention, I claim:

"1'. In a device for controlling hard twisted or covered rubber core yarn against snagging and over-feeding incident to withdrawal endwise from a spirally-wound conical or a cylindrical supply package, a centrally apertured disk of resilient'sheet material with integrally formed 'annularly-arranged tongues extending inwardly froma or the yarn as it is drawn from the supply package.

4. A yarn control device according to claim 1,. whereinthe'tongues are tapered and terminate in points, and

are pitched in the direction of gyration of the yarn as it is drawn from the supply package.

5. A yarn control device according to claim 1, wherein the support is in the form of a cylinder which is removably placeable axially over the supply package and to the top of which the disk is attached.

6. A yarn control device according to claim 1, wherein the support is in the form of a cylinder which is removably placeable axially over the yarn supply package and to the top of which the disk is attached; and further including a shallow cup-like socket base for receiving the package and holding it in upright position and about Which base the bottom end of the cylinder is engageable.

7. A yarn controlling device according to claim 1, wherein the disk is slitted at circumferential intervals to the inner limit circle of the peripheral margin along lines tangential to said aperture to provide the tongues.

8. A yarn control device according to claim 1, wherein the disk is slitted at circumferential intervals from the inner circle of a blank peripheral margin along lines tangential to the central aperture, and is also slitted medially of said lines along shorter tangential lines to provide the tongues.

9. A yarn control device according to claim 1, wherein the disk has a small central aperture which is slitted at circumferential intervals from the inner circle of a blank peripheral margin along lines tangential to said aperture and is also slitted medially of said lines along shorter tangential lines to provide the tongues;-wherein the support is in the form of a cylinder which is removably placeable axially over the package and which has a latorally-projecting circumferential flange at the top for sustaining the disk; and further including interchangeable hold-down caps engageable over the flange of the cylinder, one having an axial opening equal in diameter to that of the outer limit circle of the medial slits of the disk, and the other having an axial opening equal in diameter to that of the outer limit circle of the long slits, whereby the device can be adapted for use with yarn packages of diflerent sizes.

References Cited in the file of this patent UNITED STATES PATENTS 2,366,101 Grothey Dec. 26, 1944 

